M41ST87WMX6 STMicroelectronics, M41ST87WMX6 Datasheet - Page 10

• Manufacturer Part Number: M41ST87WMX6
• Description: IC SUPERVISOR RTC 160X8 28-SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Supervisorr

Specifications of M41ST87WMX6

• Memory Size: 160B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC, 28-SOH (8.48mm Width)
• Function: Clock/Calendar/Alarm/Timer Interrupt
• Rtc Memory Size: 160 Byte
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial (2-Wire, I2C)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5370-5; M41ST87WMX6

Description
Figure 4.
1. Open drain output.
2. Programmable output (open drain or full-CMOS); if open drain option is selected and if pulled-up to supply other than V
3. Available in SOX28 (MX) package only.
4. Crystal is external on SSOP (SS) package and internal for the SOX28 (MX) package.
10/54
this supply must be equal to, or less than V
V
OUT
TPX
IN
2
Block diagram
RSTIN1
RSTIN2
SCL
V
SDA
WDI
Crystal
V
PFI
PFI
V
BAT
EX
CC
SS
1
2
(3)
(3)
(3)
(4)
XO
XI
1.25V
(Internal)
1.25V
(Internal)
OSCILLATOR
INTERFACE
32KHz
I
2
C
BAT
V
V
V
SO
PFD
BL
when V
Doc ID 9497 Rev 9
COMPARE
COMPARE
COMPARE
COMPARE
COMPARE
CC
CLR
= 0 V (during battery backup mode).
X
REAL TIME CLOCK
& CALIBRATION
SQUARE WAVE
RTC w/ALARM
8 BYTES ROM
WATCHDOG
128 BYTES
CALENDAR
USER RAM
TAMPER
POR
BL
OFIE
WDS
AFE
CLRX
EXT
M41ST87Y, M41ST87W
TIE
X
IRQ/OUT
SQW/FT
TP
V
F
32k
AI07026
OUT
RST
PFO
PFO
E
CLR
CON
(1)
(3)
1
2
(1)
(3)
(2)
(2)
CC
(2)
(1)
,